Knock, knock, knock ima wa dare no egao wo
Machikogarete DOA wo akeru no?
Lock, lock, lock kimi no egao tokku ni
Wasurete ita hazu datta no ni

Sayonara nante kotoba dake
Kono kokoro ni wa kizande aru you and I

Knock, knock, knock ima wa boku no egao wo
Machinozonde iru koibito ga iru
Luck, luck, luck kako wo wasureru hodo ni
Love, love, love koi ni ochite iru kedo

Modoreru nara ima sugu ni
Kimi no moto he to hashitte yuku kara

Boku no first love
Wasurerarenai
Wasuretakute mo zutto
Kimi ga yomigaeru
Boku no first love

Kimi ga first love
Ima mo zutto
You are my first love
Eien ni boku no first love
My first love